Finding the Fourth Proportional to 382,927.20, 528,425.28 and 213,157.68
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Solution
The fourth proportional to 382,927.20, 528,425.28 and 213,157.68 is: 294,149.66
Step by Step Solution
- Step 1: Write the proportion equation
382,927.20 : 528,425.28 = 213,157.68 : x - Step 2: Convert to fraction form
382,927.20/528,425.28 = 213,157.68/x - Step 3: Cross multiply
382,927.20x = 528,425.28 × 213,157.68 - Step 4: Simplify right side
382,927.20x = 112,637,906,738.15 - Step 5: Solve for x
x = 112,637,906,738.15/382,927.20 - Step 6: Final answer
x = 294,149.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.